I went up today (June 3) wearing minimalist trail running shoes with close to a thousand miles of tread wear (had beta from past 3 days so decision was with care).
Went up and down both sides (main trail and jmt to guitar lake, trip report coming). Can confirm that unless there’s a storm, this trail is fully passable without traction. Cables are no problem, a couple 15 foot sections of sun cup snow after trail crest and before the summit boulder field. Also no problem.
Filmed a bunch of the water and snow/ice sections for beta reference for anyone else. Uploading to YouTube now, I’ll edit this post with the link when it’s up (might be tomorrow, I’m on a horseshoe meadow road clinging to 2 bars ????).See the trip and video report here.